<template>
  <div class="ratingselect">
    <div class="rating-type border-1px">
      <span @click="select(2, $event)" class="block positive" :class="{'active': selectType === 2}">{{desc.all}}
        <span class="count">{{ratings.length}}</span>
      </span>
      <span @click="select(0, $event)" class="block positive" :class="{'active': selectType === 0}">
        {{desc.positive}}
        <span class="count">{{positives.length}}</span>
      </span>
      <span @click="select(1, $event)" class="block negative" :class="{'active': selectType === 1}">
        {{desc.negative}}
        <span class="count">{{negatives.length}}</span>  
      </span>
    </div>
    <div @click="toggleContent" class="switch" :class="{'on': onlyContent}">
       <span class="icon-check_circle"></span>
       <span class="text">只看内容的评价</span>
    </div>
  </div>
</template>

<script type="text/ecmascript-6">
  const POSITIVE = 0; // 积极评价
  const NEGATIVE = 1; // 消极评价
  const ALL = 2;
  export default {
    props: {
      ratings: {
        type: Array,
        default() {
          return [];
        }
      },
      selectType: {
        type: Number,
        default: ALL
      },
      onlyContent: {
        type: Boolean,
        default: false
      },
      desc: {
        type: Object,
        default() {
          return {
            all: '全部',
            positive: '满意',
            negative: '不满意'
          };
        }
      }
    },
    methods: {
      select(type, event) {
        if (!event._constructed) {
          return;
        }
        this.selectType = type;
        this.$dispatch('ratingtype.select', type);
      },
      toggleContent(event) {
        if (!event._constructed) {
          return;
        }
        this.onlyContent = !this.onlyContent;
        this.$dispatch('content.toggle', this.onlyContent);
      }
    },
    computed: {
      positives() {
        return this.ratings.filter((rating) => { // 过滤，将评论中满意的数据过滤出来
          return rating.rateType === POSITIVE;
        });
      },
      negatives() {
        return this.ratings.filter((rating) => { // 过滤，将评论中满意的数据过滤出来
          return rating.rateType === NEGATIVE;
        });
      }
    }
  };
</script>

<style scoped lang="stylus" rel="stylesheet/stylus">
  @import '../../common/stylus/mixin.styl';
  .ratingselect
    .rating-type
      padding 18px 0
      margin 0 18px
      border-1px(rgba(7, 17, 27, .1));
      font-size 0
      .block
        display inline-block
        padding 8px 12px
        margin-right 8px
        line-height 16px
        border-radius 1px
        font-size 12px  
        color rgb(77, 85, 93)
        &.active
          color #fff
        .count 
          margin-left 2px
          font-size 8px
        &.positive
          background-color rgba(0, 160, 220, .2)
          &.active
            background-color rgb(0, 160, 220)
        &.negative
          background-color rgba(77, 85, 93, .2)
          &.active
            background-color rgb(77, 85, 93)
   .switch
    padding 12px 18px
    line-height 24px
    border-bottom 1px solid rgba(7, 17, 27, .1)
    color rgb(147, 153,159)
    font-size 0
    &.on
      .icon-check_circle
        color #00c850  
    .icon-check_circle
      display inline-block
      vertical-align top
      margin-right 4px
      font-size 24px
    .text
      font-size 12px

</style>
